Valve.



Patented February 21, 1905.

PATENT EEicE HALLAH C. -KINNISON, OF DALLAS, TEXAS.

VALVE.

SPECIFICATION forming part of Letters Patent No. 783,285, dated February21,1905.

Application iled October 15, 1904. Serial No. 228,618.

T0 all whom t ntf/,U concern:

Be it known that I, HALLAH C. KINNISON, a citizen of the United States,residing at Dallas, in the county of Dallas and State of Texas, haveinvented new and useful Improvements in Valves, of which the followingis a speciiication.

My invention relates tosteam-heating systems in which vacuum-pumps areemployed; and its primary object is to provide a novel and useful valveadapted to be interposed in the return-pipe between a radiator and avacuum pump, whereby a vacuum may be obtained and preserved in theradiator and whereby the discharge of condensation may be controlled andregulated.

A further object of the invention is to provide a valve of theabove-stated character which is cheap to manufacture, simple of con-`Vstruction, durable, and efficient and which is composed of few parts soarranged and conv structed as not to be liable to become broken orinoperative.

Vith the above and other objects in view the invention consists in theconstruction, combination, and arrangement of parts hereinafter fullydescribed, claimed, and illustrated in the accompanying drawings,wherein is'disclosed the preferred form of my invention, and wherein-Figure 1 is a vertical central section of a valve. constructed inaccordance with my invention. Fig. 2 is a transverse section on thelines 2 2 of Fig. 1.

Referring to the drawings by reference-numerals, 1 designates an outercylinder closed at its bottom except for an outlet or discharge opening2, which communicates with a nipple 3, said nipple being provided withinteriorlyarranged screw threads 4, whereby a vacuum-pump may beremovably secured to the nipple. The cylinder is also provided, at apoint adjacent its upper end, with screwthreads 5. adapted to be engagedby screwthreads of a cap 6, whereby said cap may be removably secured inapplied position. This cap is provided with an upstanding projection 7to permit of said cap being readily applied and removed by means of atool. A cylinder 8 is arranged on the interior of said a radiator.

cylinder 1 and is of a diameter smaller than that of the cylinder 1,whereby a space 9 is provided between the two cylinders. This cylinderis also of a length shorter than that of the cylinder 1 to provide aspace between the upper and lower ends of the cylinder, and saidcylinder 8 is suspended within the cylinder 1 by means of an integralconnection 10. The cylinder 8 is closed at its bottom except for anopening 11, which flares upwardly to provide a conically-shapedvalve-seat 12, said opening and valve-seat registering with the opening2 in the cylinder 1. The upper end of the cylinder 8 is provided withscrewthreads adapted to be engaged by the screwthreaded edge of a cap13, whereby said cap may be removably secured in applied position, thiscap being also provided with a projection 14, similar in construction tothe projection 7 Projecting laterally from the cylinder 1 andcommunicating with the interior of the cylinder 8 is a sleeve 15, havingits end provided with screw-threads 16, whereby said sleeve may beconnected to a radiator by the usual coupling. The cap 12 isprovidedwith air-escape openings 17, whereby communication is set up between thetwo cylinders.

A float 18 is movable in the cylinder 8 and has its upper and lower endsprovided with guide-rods 19 and 20,respectively. The guiderod 19 ismovable in a recess 21, arranged in the cap 13 and the guide-rod 2O ismovable in the opening 11, whereby said float is adapted for verticalmovement. The guide-rod 2O is provided with a conical valve 22, adaptedto normally occupy the valve-seat 12.

The valve, as above described, is adapted to be interposed in thereturn-pipe of a steamheating system between a vacuum-pump and Thevacuum-pump is set in operation and the air in the radiator is caused topass through the sleeve 15 into the cylinder 8, then through theopenings 17 and 2 into the vacuum-pump, from whence it is discharged.After the air is exhausted from the radiator the steam is permitted toenter the same, and as the condensation accumulates in the radiator itpasses into the cylinder 8 through the medium of the sleeve 15. When asuflicient amount of condensation has accumulated in IOO the cylinder 8,the float 18 is caused to rise,

thereby unseating the valve 22 and permitcylinders l and 8 are curveddownwardly .to-

ward their centers all liability ot' condensation accumulating in thecylinder 1 is obviated and that when the valve 22 is unseated all of thecondensation in the cylinder 8 will be discharged through the opening1l.

Having thus fully described the invention, what is claimed as new is' l.In a valve for a heatingsystem,an outer cylinder closed at its upper endand provid ed with a discharge-opening at its lower end, said cylinderbeing provided with means whereby it may be interposed between aradiator and a vacuum-pump, an inner cylinder arranged within and spacedfrom the outer cylinder, said inner cylinder being provided at its upperend with an air-discharge opening and at its lower end with acondensation-discharge opening, and a valve mounted within the innercylinder and regulated by condensation to control thecondensation-discharge opening',

2. In a valve for a heating system, an outer cylinder provided at itslower end with a discharge-opening, and provided with means whereby saidcylinder may be interposed between a radiator and a vacuum-pump, a capremovably secured to the upper end of said cylinder, an inner cylinderarranged within and spaced from the outer cylinder and pro- -v-ided witha condensation-discharge opening in its lower end, saiddischarge-opening tapering upwardly and outwardly to provide a conicalvalve-seat, a cap removably secured tothe upper end of said innercylinder and provided with air-discharge openings, said last-named capbeing provided with a recess, a Hoat arranged within the inner cylinderand provided at its upper' and lower ends with guide-rods, and a valvesecured to said lower guide-rod and adapted to normally occupy saidvalve-seat.

In testimony whereof I aiiix my signaturein presence oi' two witnesses.

HALLAH c. KINNIsoN.

Witnesses:

H. A. KINNIsoN,

Guo. J. HAEFFERT.

